Now jurors will decide if the 35 year old will receive life in prison with or without parole, or a death sentence. His guilty plea may be a move to avoid death.

The sentencing phase is expected to last a week. Jurors will hear gruesome details about the cousins' deaths.

Like many kids in their College Park neighborhood, the teens took a dirt path through the woods to get to a grocery store to buy snacks on Apr. 5, 2007. The next day, relatives discovered their naked bodies. They had both been stabbed multiple times with a screwdriver; Kimble had also been raped.

Jurors may hear from Moody's one-time girlfriend, who broke the case in 2007. After Moody confessed to her, she contacted police.

Moody faces an 11-count indictment, including rape, murder and kidnapping.